96 - 98 Mustang Key Programing

If you need to program a new key here's the procedure for programming a new key (with correct mechanical
cut - same as old key pattern).

1. Insert the first programmed (they mean one of the original) ignition key
into the ignition lock cylinder and turn the ignition switch from OFF to RUN
(maintain the ignition switch in RUN for one second).

2. Turn the ignition switch to OFF and remove the first key from the
ignition lock cylinder.

3. Within five seconds of turning the ignition switch to OFF, insert the
second programmed ignition key into the ignition lock cylinder and turn the
igniton switch from OFF to RUN (maintain the ignition switch in RUN for one
second).

4. Turn the ignition switch to OFF and remove the second key from the
ignition lock cylinder.

5. Within 10 seconds of turning the ignition lock cylinder to OFF, insert
the unprogrammed ignition key (new key) into the ignition lock cylinder and
turn the ignition switch from OFF to RUN (maintain the ignition switch in
RUN for 1 second).

6. If it is desired to program additional key(s), repeat the key
programming procedure from the beginning.

Note, if the key doesn't work the first time you try it, you can retry the
programming procedure from step 1.